2006 Lexus IS250 tire pressure

TABLE OF CONTENTSIndex
• Bottle holders/door pockets ......................................... 209
3-5. Other interior features............. 211 Sun visors............................................ 211
Vanity mirror ................................... 212
Clock .................................................. 213
Satellite switch es ........................... 214
Ashtrays ............................................ 217
Cigarette lighter ............................ 218
Power outlet .................................... 219
Seat heaters .................................... 220
Seat heaters and ve ntilators .... 222
Armrest ............................................ 224
Rear sunshade ............................... 225
Extended trunk.............................. 227
Coat hooks ..................................... 228
Floor mat.......................................... 229
Trunk features............................... 230
Garage door opener .................. 233
Compass......................................... 238
4-1. Maintenance and care............ 244 Cleaning and protecting the vehicle exterior................... 244
Cleaning and protecting the vehicle interior .................... 246 4-2. Maintenance.............................. 249
Maintenance requirements ..... 249
General maintena nce ................. 251
Emission inspection and maintenance (I/M)
programs ...................................... 254
4-3. Do-it-yourself maintenance............................ 255
Do-it-yourself service precautions .................................. 255
Hood................................................. 258
Positioning the jack ..................... 259
Engine compartment................... 261
Tires ................................................... 275
Tire inflation pressure................ 285
Wheels............................................. 289
Air conditioning filter................... 291
Electronic key battery ................ 293
Checking and replacing fuses ................................................ 295
Headlight aim................................ 309
Light bulbs ........................................ 310
5-1. Essential information ................ 318 If your vehicle needs to be towed ........................................ 318
If you think something is wrong ............................................. 325
4Maintenance and care
5When trouble arises

Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 275
P. 348
P. 378
P. 387
: If equipped
Tail lights P. 113
Side marker lights P. 113
Trunk P. 19
Rear window defogger P. 170
Doors P. 15
Fuel filler door P. 47
Turn signal lights P. 98

87
2-1. Driving procedures
2
When driving
CAUTION
■When taking a nap in the vehicle
Always turn the engine off.
Otherwise, you may accidentally move the shift lever or press the accelerator
pedal, which could cause an accident or fire due to abnormal engine overheating.
Additionally, if the vehicle is parked in a poorly ventilated area, exhaust fumes may
enter the vehicle and cause gas poisoning.
■When braking the vehicle
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and may cause one side of
the vehicle to brake differently than the other side. Also the parking brake may
not securely hold the vehicle.
●If the power brake assist function does not operate, do not follow other vehicles
closely and avoid downhills or sharp turns that require making.
In this case, braking is still possible, but it will require more force on the pedal than
usual. Braking distance may also increase.
●Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your reserved brake fluid pressure.
●The brake system consists of 2 individual hydraulic systems: if one of the systems
fails, the other will still operate. In this case, the brake pedal should be depressed
more firmly than usual and braking distance becomes longer.
Do not drive your vehicle with only a single brake system. Have your brakes fixed
immediately.
■If the vehicle becomes stuc k or bogged (AWD models)
Do not spin the wheels recklessly when any of the tires is up in the air, or stuck in
sand or mud, etc. This may damage the drive system components or propel the
vehicle forward (or in another direction) and cause an accident.

143
2-4. Using other driving systems
2
When driving
CAUTION
■When the slip indicator flashes and a warning buzzer sounds
This situation occurs immediately while VSC is activated. Always drive carefully.
Reckless driving may cause an accident. Ex ercise particular care when the indica-
tor light flashes and a buzzer sounds.
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
pressure level.
The ABS and VSC systems will not function correctly if different tires are fitted on
the vehicle. The LSD may also be damaged.
Contact your Lexus dealer for further info rmation when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the
VDIM system, and may cause the system to malfunction.

151
2-5. Driving information
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
• Have a service technician inspect the level and specific gravity
of battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
● Tire pressure falls in winter as the outside temperature falls. Add
2.9 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar) to the
standard tire inflation pressure.

154
2-5. Driving information
■Snow chain installation
Observe the following precautions when installing and removing chains.
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires only. Do not install tire chains on front tires.
●Install the tire chains on rear tires as tightly as possible. Retighten chains after
driving 1 /4 - 1 /2 mile (0.5 - 1.0 km).
●Install tire chains following the instructions provided in the accompanying
instructions.
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the size specified for your vehicle.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h ), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with snow chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used,
or 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden turns and braking, as use of chains may adversely affect vehicle
handling.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.

155
2-5. Driving information
2
When driving
NOTICE
■Repairing or replacing snow tires
Request repairs of and obtain replacement snow tires from Lexus dealers or legiti-
mate tire retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire air pressure sensor.
■Fitting tire chains
The tire air pressure sensor may not functi on correctly when tire chains are fitted.

215
3-5. Other interior features
3
Interior features
■Items that can be set using the satellite switches
Lexus parking assist-sensor ( P. 133) ON/OFF
(if equipped)
Tire pressure warning system initialization
( P. 2 7 7 )
ID code selection for tire air pressure system
( P. 2 7 8 )
AFS (Adaptive Front-lighting System) ( P. 1 1 4 )
ON/OFF (if equipped)
Vehicle speed indicator ON/OFF and speed set-
ting ( P. 1 0 2 )
Tacho indicator ON/OFF and engine speed (rpm)
setting ( P. 103)